EP3130725A1 - Hammer assembly for parquet or panel laying - Google Patents

Abstract

The invention relates to a hammer assembly having a striking mass (2) which can be displaced along a guide (1) in an impact direction (S) on an anvil (3) and an impact transmission element (4) which has a peripheral edge extending in the direction of impact (S) (5 ') having impact-transmitting edge (5) for abutment against a Schlagbeaufschlagungsseite (32) of a workpiece (30) and a support edge (7) for resting on a support side (33) of the workpiece (30). It is essential that the distance (H1, H2, H3) of the peripheral edge (5 ') of the impact-transmitting flank (5) from the support flank (7) is adjustable, wherein the support flank (7) is formed by a support body (6) in an adjustment direction (V) position adjustable with the impact transfer element (4) is connected.

Description

Field of engineering

The invention relates to a hammer assembly comprising a percussive mass displaceable along a guide in a direction of impact and a percussion transmission element having an impact edge extending in the direction of impact for engaging a percussion side of a workpiece and a support flank for supporting on a support side of the workpiece Workpiece has.

State of the art

The DE 29 613 307 U1 describes a hammer assembly in which a striking mass is displaceable along a guide to be moved in the direction of impact against an anvil. The anvil is at the first end of the guide. At the second end of the guide there is a shock transmission element with a Schlagübertragungsflanke, which is engageable with a Schlagbeaufschlagungsseite of a workpiece, for example. A parquet or panel plate to transfer the impact force on the panel plate, so that a spring of the panel plate in a groove of a other panel panel can be introduced. The hammer assembly has a support flank, with which the second end of the guide is supported on the visible side of the laminate plate or the panel plate.

A similar hammer arrangement describes the DE 201 00 919 U1 , The shock-transmitting edge and the support flank are formed here by two mutually perpendicular flanks of an L-shaped piece.

When laying parquet, slatted or laminated slabs with tongue and groove, one of the laying devices described above will be used. The impact transfer edge comes into contact with a narrow side of the parquet, laminate or panel. If this impact loading side is about the narrow side of the plate, which has the spring, the impact transfer edge must not rest on the narrow side of the spring, but must rest against the portion of the narrow side of the plate between the spring and the viewing surface of the plate, since otherwise the risk of breakage the spring exists. There are offered parquet, laminate or panel panels with different thicknesses of material on the market, with the different plates differ by different distances between the spring and the visible side.

Summary of the invention

The invention has for its object to further develop a hammer assembly of the aforementioned type nutzsvorteilhaft.

The object is achieved by the invention specified in the claims.

First and foremost, it is proposed that the distance of the peripheral edge of the impact transmission edge from the support flank is adjustable. As a result, the transversely directed to the direction of impact height of the impact transfer edge can be adjusted. According to the invention, the extent of the impact-transmitting edge, which extends in the direction of the surface normal of the visible side of the panel plate, is adjustable to the distance between the spring and the visible side of the panel plate. As a result, by presetting the height of the impact-transmitting edge, the tool can be adapted to the material thickness of the plates to be laid, so that on the one hand it is ensured that the impact transfer edge does not act on the spring, but on the other hand attacks the impact transfer edge with a maximum distance relative to the support flank on the workpiece. The impact transfer edge can abut in surface contact with the impact side of the workpiece. Preferably, however, the impact transfer edge is an angling of the impact transfer element. Between Schlagbeaufschlagungsseite and impact transfer edge then forms a wedge-shaped gap, because only the edge of the impact transfer edge abuts the Schlagbeaufschlagungsseite of the workpiece. As a result, the edge of the workpiece between Schlagbeaufschlagungsseite and the bearing side is protected. This edge may rest against the preferably inclined support edge. The marginal edge of the impact transfer edge can be brought into such a distance to the support flank, that it acts only slightly above the spring on the impact side of the workpiece. In a preferred embodiment of the invention, the support flank is formed by a support body, which is adjustably connected to the impact transfer element. The preferably formed by a steel plate impact transmission element can then be firmly connected to the guide, which may be formed, for example, of a pipe. Particularly preferably, the support body is incrementally height-adjustable associated with the hammer assembly. It can be connected directly to the impact transmission element, but also directly to the guide. He is preferably at least indirectly connected adjustable with the impact transfer element. It is preferably provided that the support edge, which extends substantially transversely, possibly slightly beveled to the impact transfer edge, can be fixed at defined intervals to the edge of the impact transfer edge. For this purpose, the support body form a toothing, which engages in a counter-toothing of the impact transmission element. The counter-toothing of the impact-transmitting element may be formed by an edge of an opening of the impact-transmitting element. In this opening can engage an extension of the support body, which trains the gearing. The attachment of the support body on the impact transmission element can be effected by means of fastening elements, which are formed, for example, of screws and nuts. By loosening the fastening elements, the toothing can be brought out of the counter toothing, so that the stop body can be displaced relative to the impact transmission element. In a preferred embodiment, the hammer assembly has a substantially T-shaped configuration, wherein the T-bar of the guide and the two T-legs are formed by the impact transmission element. The impact transmission element is preferably a steel plate and the guide a tube. Within the tube, a cylindrical impact mass is arranged longitudinally displaceable. The striking mass can be connected to a handle. The connecting element, with which the handle is connected to the impact mass, can pass through a longitudinal slot of the tube. A first end of the tube is connected to the anvil. The anvil is preferably formed by a cylindrical steel body, which is inserted within the tube and can be secured by means of a transversely oriented to the direction of extension of the tube screw on the pipe. With the same screw and a support member may be attached to the pipe, which forms feet that can be supported on the visible side of the workpiece. The second end of the tube is connected to the impact transfer element. It may be a cohesive or positive connection. Preferably, arcuate portions of the edge of the second end are provided, which engage in arcuate slots of the impact transmission element. They can be firmly connected to the impact transmission element via a welded connection. While the anvil, the guide and the impact-transmitting element are preferably made of metal, particularly preferably made of steel, the support body and the handle can be made of plastic. Between the impact surface of the impact mass and the counter-impact surface of the anvil, a damping element, for example. A felt disc can be arranged.

Brief description of the drawings

Fig. 1

eine erste perspektivische Darstellung des Ausführungsbeispiels der Erfindung,

Fig. 2

eine zweite perspektivische Darstellung des Ausführungsbeispiels mit teilgeschnittener Führung,

Fig. 3

die Seitenansicht gemäß Pfeil III in Figur 2,

Fig. 4

eine Explosionsdarstellung der Hammeranordnung,

Fig. 5

einen Schnitt gemäß der V - V in Figur 3,

Fig. 6a

eine Darstellung gemäß Figur 5 in einer auf eine Paneelplattenanordnung aufgesetzter Funktionsstellung, bei der die Randkante der Schlagübertragungsflanke einen ersten Abstand von der Auflageflanke besitzt,

Fig. 6b

eine vergrößerte Darstellung des Bereichs VI b in Figur 3, wobei die Hammeranordnung auf eine Paneelanordnung aufgesetzt ist,

Fig. 7a

eine Darstellung gemäß Figur 6a, jedoch mit einem anderem Abstand zwischen Randkante und Auflageflanke,

Fig. 7b

eine Darstellung gemäß Figur 6b, jedoch mit einem Abstand,

Fig. 8a

eine Darstellung gemäß Figur 7a, jedoch mit einem weiter vergrößerten Abstand und

Fig. 8b

eine Darstellung gemäß Figur 7b mit einem Abstand.

In the following the invention will be explained in more detail by means of exemplary embodiments. Show it:

Fig. 1

a first perspective view of the embodiment of the invention,

Fig. 2

a second perspective view of the embodiment with partially cut guide,

Fig. 3

the side view according to arrow III in FIG. 2 .

Fig. 4

an exploded view of the hammer assembly,

Fig. 5

a section according to the V - V in FIG. 3 .

Fig. 6a

a representation according to FIG. 5 in a functional position set on a panel arrangement, in which the marginal edge of the impact-transmitting flank is at a first distance from the support flank,

Fig. 6b

an enlarged view of the area VI b in FIG. 3 wherein the hammer assembly is mounted on a panel assembly,

Fig. 7a

a representation according to FIG. 6a , but with a different distance between the peripheral edge and the support flank,

Fig. 7b

a representation according to FIG. 6b but with a distance,

Fig. 8a

a representation according to Figure 7a , but with a further enlarged distance and

Fig. 8b

a representation according to FIG. 7b with a distance.

Description of the embodiments

A guide 1 constructed as a tube has a first end 1 'and a second end 1 "and a longitudinal slot 15 extending around the two ends. Within the cavity 14 of the tube 1 is in the direction of impact S, which corresponds to the direction of extension of the tube 1 , a displaceable impact mass 2, which performs the function of a hammer.A bolt 17, the impact mass 2 is connected to a handle 16 which is disposed outside of the tube 1. The screw 17 engages through the slot 15. A curved bottom 16 'of the Grip 16 projects beyond sections of the two longitudinal edges of the slot 15. Protrusions projecting from the underside 16 'of the gripping piece engage in axial grooves in the percussion mass 2. By sliding the gripping piece 16, the percussion mass 2 can be slidably displaced in the direction of impact S within the tube 1 An essentially cylindrical anvil 3 is located in the region de s first end 1 'in the cavity 14 of the tube 1. The tube has there a bore 23, with a bore 24 of the anvil 3 is aligned. Through the two in the transverse direction to the direction of impact S extending bores 23, 24, a screw 21 is inserted, which is screwed into a nut 22. The screw 21 fixes not only the anvil 3 on the tube 1, but also a support member 19 on the pipe first

In the support member 19 is a bow-shaped body with laterally projecting wings 19 ', in which feet stuck 20, located at support the use of the hammer assembly on the support side 33 of a workpiece 30.

Between a face 2 'of the impact mass 2 and a counter-impact surface 3' of the anvil 3 there is a damping element 18 formed in particular by a felt disk. If the impact mass 2 is moved against the anvil 3, the felt disk dampens the impulse transmission from the impact mass 2 to the anvil third

The second end 1 "of the tube 1 has an edge which forms two edge sections 12 which are separated by a recess, and the edge sections 12 serve to fasten the tube 1 to an impact-transfer element 4.

The impact transmission element 4, like the pipe 1, is made of steel. It has for attachment to the pipe 1 two arcuate slots 13 into which the edge portions 12 engage to be welded to the impact transfer element 4. The impact transmission element 4 is formed by an elongated plate whose surface normal points in the direction of the direction of impact S. The laying down of parquet or laminate plates downwardly facing edge portion of the impact transmission element 4 forms a shock transfer edge 5, which can be brought in surface contact with a Schlagbeaufschlagungsseite 32 of the workpiece 30. In the embodiment, the impact transfer edge 5 is slightly angled relative to the surface extension of the impact transfer element 4, so that essentially only the marginal edge 5 'abuts the impact loading side 32 of the workpiece 30.

On the broad side of the impact transmission element 4, on which the guide 1 is fixed, there is a support body 6. The support body. 6 is formed by a plastic part and has a in the use position downwardly facing support edge 7, which extends substantially transversely to the impact transfer surface. Substantially transversely here means that the support flank 7 can also occupy an angle greater than 90 degrees to the impact transfer edge 5. It is even preferably provided that the support edge 7 extends obliquely to a surface normal to the impact transfer edge 5, so that in the position of use between bearing side 33 of the workpiece 30 and support edge 7 forms a wedge gap and only the region of the support edge 7 is supported on the support side 33, the impact transfer edge 5 is immediately adjacent. A transition edge between the support side 33 and impact side 32 of the workpiece 30 is then only on the support edge 7 at. On the other hand, the support flank 7 is supported only on this transitional edge of the workpiece 30, so that it is spared during the introduction of the impulse.

The support body 6 can be adjusted in height in an adjustment direction V, which is directed perpendicular to the direction of impact S and perpendicular to the marginal edge of the impact transfer edge 5. The stopper 6 can be adjusted in height gradually. For this purpose, the stop body 6 has projections which form a toothing 8. These projections engage in openings 26 of the impact transfer element 4. The openings 26 have a counter toothing 9, in which engages the toothing 8. There are provided fastening means for releasably securing the support body 6 to the impact transmission element 4. The fasteners consist of a screw 10 which can be screwed into a nut 11. For this purpose, the screw 10 passes through a slot 27 of the impact transmission element 4 and penetrates a bore 28 of the support body. 6

In the embodiment, the distance H1, H2, H3 can be adjusted from the peripheral edge 5 'of the impact transfer edge 5 to the support edge 7 in three stages, namely such that the height projection of the impact transfer edge 5 can be seven, ten or thirteen millimeters. The height of impact transfer edge 5 can thus be adjusted to the distance between a spring 31 and the support side 33 of the workpiece 30 such that the marginal edge 5 'of the impact transfer edge 5 abuts directly above the spring 31 on the Schlagbeaufschlagungsseite 32, if at the same time the support edge 7 the support side, so the visible side 33 of the workpiece 30 rests. The workpiece 30 may be a parquet plate, a laminate plate, a panel plate or the like.

The support body 6 has a recess 29 which receives the second end 1 "of the guide 1. The fastening elements 10, 11 and the toothing 8 are arranged in the two end sections of the support body 6 adjacent to the indentation 29. The support body 6 extends essentially over the entire length of the impact transmission element 4, wherein the support edge 7 extends parallel to the peripheral edge 5 'of the impact transfer edge 5.

• Zunächst wird das Abstandsmaß H1, H2, H3 der Randkante 5' der Schlagübertragungsflanke 5 von der Auflageflanke 7 auf den Abstand zwischen Feder 31 und Auflageseite 33 des Werkstücks 30 eingestellt. Sodann wird die Hammeranordnung auf die Auflageseite 33 des Werkstücks 30 aufgelegt, sodass sich die Füße 20 und die Auflageflanke 7 auf der Auflageseite 33 abstützen. Die Schlagübertragungsflanke 5 wird in Anlage zur Schlagbeaufschlagungsseite 32 gebracht. Sodann wird mittels des Griffstücks 16 die Schlagmasse 2 in Schlagrichtung bewegt, sodass die Schlagfläche 2' gegen die Gegenschlagfläche 3'anschlägt. Der derart auf den Amboss 3 übertragene Impuls wird über das Rohr 1 auf das Schlagübertragungselement 4 übertragen. Die Schlagübertragungsflanke 5 leitet den Impuls in das Werkstück 30 ein, sodass eine der Feder 31 gegenüberliegende Nut in Richtung auf eine ihr zugeordnete Feder eines benachbarten Werkstücks schlagbeaufschlagt wird.

The operation of the device is the following:

• First, the distance H1, H2, H3 of the peripheral edge 5 'of the impact transfer edge 5 of the support edge 7 is set to the distance between the spring 31 and the support side 33 of the workpiece 30. Then, the hammer assembly is placed on the support side 33 of the workpiece 30, so that the feet 20 and the support edge 7 are supported on the support side 33. The impact transfer edge 5 is brought into abutment with the impact side 32. Then, by means of the handle 16, the impact mass 2 is moved in the direction of impact, so that the striking surface 2 'against the counter-impact surface 3'anschlägt. The thus transmitted to the anvil 3 pulse is transmitted via the tube 1 to the impact transfer element 4. The impact transfer edge 5 introduces the impulse into the workpiece 30 so that a groove 31 opposite the spring is impacted towards a spring of an adjacent workpiece assigned to it.

In the in the FIGS. 6a and 6b shown operating position has the marginal edge 5 'of the impact transfer edge 5 a distance H1 of seven millimeters to the support edge 7 and engages immediately above a spring 31 on a narrow side of the workpiece 30, which is the impact transfer side 32.

The operating position of the FIGS. 7a and 7b shows the use of the hammer assembly on a parquet plate with a greater material thickness. Here, the distance H2 between the peripheral edge 5 'of the shock-transmitting edge 5 and the support flank 7 is ten millimeters. Again, the peripheral edge 5 'engages directly above the spring 31 on the narrow side of the workpiece 30.

In the in the FIGS. 8a and 8b shown operating position, the hammer assembly is used on a parquet plate, which has an even greater material thickness. Here, the marginal edge 5 'has a distance H3 of thirteen millimeters to the support flank 7 and likewise engages directly above the spring 31 on the narrow side of the workpiece 30.

The FIG. 5 shows the reference numeral 25, a transport locking element which can be inserted into an opening of the tube 1 in order to prevent a displaceability of the impact mass 2 within the tube 1. For this purpose, the impact mass must either be in an end position in the direction of the first Tube end 1 'or in the direction of the second tube end 1 ". The transport securing element 25 is a plastic stopper which engages in the tube opening.

The above explanations serve to explain the inventions as a whole, which further develop the state of the art independently, at least by the following feature combinations, namely:

A hammer assembly, which is characterized in that the distance H1, H2, H3 of the peripheral edge 5 'of the impact transfer edge 5 of the support edge 7 is adjustable;

A hammer assembly, which is characterized in that the support edge 7 is formed by a support body 6, which is connected in an adjustable direction V position adjustable with the impact transfer element 4;

A hammer assembly, which is characterized in that the support body 6 is gradually adjustable relative to the impact transfer element 4;

A hammer assembly, which is characterized in that the support body 6 has a toothing 8, which engages in a counter-toothing 9 of the impact transfer element 4;

A hammer assembly characterized in that the hammer assembly is substantially T-shaped, the T-bar being formed by the guide 1 and the T-legs by the impact-transmitting member 4 are, wherein the support body 6 extends substantially over the entire length of the T-legs;

A hammer assembly, which is characterized in that the guide 1 is formed by a tube, in the cavity 14, the impact mass 2 is displaceably guided and the support body 6 forms a bulge 29 which receives the tube;

A hammer assembly characterized in that a first end 1 'of the tube-formed guide 1 receives the anvil 3 and the second end 1 "of the guide 1 is fixedly connected to the impact-transmitting member 4;

A hammer assembly which is characterized in that the second end 1 "of the guide 1 forms edge portions 12 which engage in arcuate slots 13 of the plate-shaped impact transmission element 4;

A hammer assembly, which is characterized in that the guide 1, the anvil 3 and the impact transmission element 4 made of metal, in particular steel and the support body 6 is a plastic part.

All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the associated / attached priority documents (copy of the prior application) is hereby also incorporated in full in the disclosure of the application, also for the purpose of including features of these documents in claims of the present application. The subclaims characterize with their features independent inventive developments of the prior Technology, in particular to make divisional applications based on these claims. <b><u> List of Reference Numbers </ u></b> 1 Leadership, tube 24 drilling 1' first pipe end 25 Transport safety element 1" second pipe end 26 opening 2 striking mass 27 Long hole 2 ' Playing surface 28 drilling 3 anvil 29 indentation 3 ' Anti-impact area 30 Workpiece, laminate plate 4 Impact transmission element 31 feather 5 Impact-transmitting edge 32 Schlagbeaufschlagungsseite 5 ' edge 33 support side 6 support body 7 bearing surface H1 Height, distance 8th gearing H2 Height, distance 9 counter teeth H3 Height, distance 10 screw 11 mother S impact direction 12 edge section 13 arcuate slot V adjustment 14 cavity 15 slot 16 grip 17 screw 18 damping element 19 support element 20 foot 21 screw 22 mother 23 drilling

Claims (11)

Hammer arrangement with a striking mass (2) which can be displaced along a guide (1) in an impact direction (S) on an anvil (3) and an impact transmission element (4) which has an edge (5 ') extending in the direction of impact (S). having impact-transmitting flank (5) for abutment with a impact-loading side (32) of a workpiece (30) and a bearing flank (7) for bearing on a support side (33) of the workpiece (30), characterized in that the distance (H1, H2, H3) of the peripheral edge (5 ') of the impact transfer edge (5) of the support edge (7) is adjustable. Hammer arrangement according to claim 1, characterized in that the support flank (7) of a support body (6) is formed, which in an adjustment direction (V) is adjustably connected to the impact transfer element (4). Hammer arrangement according to one of the preceding claims, characterized in that the support body (6) is adjustable in stages relative to the impact transfer element (4). Hammer arrangement according to one of the preceding claims, characterized in that the support body (6) has a toothing (8) which engages in a counter-toothing (9) of the impact transmission element (4). Hammer assembly according to one of the preceding claims, characterized in that the hammer assembly is substantially T-shaped, wherein the T-bar of the guide (1) and the T-legs of the impact transmission element (4) are formed, wherein the Support body (6) extends substantially over the entire length of the T-legs. Hammer arrangement according to one of the preceding claims, characterized in that the guide (1) is formed by a tube in whose cavity (14) the striking mass (2) is displaceably guided. Hammer arrangement according to one of the preceding claims, characterized in that the support body (6) forms a bulge (29) which receives the guide (1), in particular the tube. Hammer arrangement according to one of the preceding claims, characterized in that a first end (1 ') of the guide (1) formed as a tube accommodates the anvil (3) and the second end (1 ") of the guide (1) is fixed to the impact-transmitting element (1). 4) is connected. Hammer arrangement according to one of the preceding claims, characterized in that the second end (1 ") of the guide (1) edge portions (12) which engage in arcuate slots (13) of the plate-shaped impact transmission element (4). Hammer arrangement according to one of the preceding claims, characterized in that the guide (1), the anvil (3) and the impact transmission element (4) made of metal, in particular steel and the support body (6) is a plastic part. Hammer assembly characterized by one or more of the characterizing features of any one of the preceding claims.

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